package com.zz.junit;

public class StringUtil {
    public static void printNumber(String name){
        if(name == null)
            System.out.println("名字长度" + name.length());
    }

    //求字符的最大索引
    public static int getMaxIndex(String data){
        if(data == null){
            return -1;
        }
        return data.length();
    }
}
